since windows 8 is developed for touch devices, no i don't have it.also why would i want to buy windows 8 and then retro fit a touch screen adaptorto an older laptop?perhaps if i ever buy a tablet or touch screen lappy then it will have windows 8but until then it seems silly to upgrade to a new OS when i don't need to , and then fork outmore money to 'upgrade' an old machine.

Windows 8 is developed to support touch devices, and that add-on at $140 is cheaper than $1,000+ for a laptop or PC with a touch screen

I have an oldish computer(early 2011), and I ran the Windows 8 RC to test on a VirtualBox appliance which was only allocated 60% of system resources, and it still worked fine, so it's not like it won't run on old computers

And, even if you buy a new Windows 8 machine and want it to be touch screen, this add-on would be a better option than paying many times more for something that has a touch-screen